CN201347809Y - Engine cylinder end - Google Patents
Engine cylinder end Download PDFInfo
- Publication number
- CN201347809Y CN201347809Y CNU2009201260725U CN200920126072U CN201347809Y CN 201347809 Y CN201347809 Y CN 201347809Y CN U2009201260725 U CNU2009201260725 U CN U2009201260725U CN 200920126072 U CN200920126072 U CN 200920126072U CN 201347809 Y CN201347809 Y CN 201347809Y
- Authority
- CN
- China
- Prior art keywords
- line
- cylinder head
- profile line
- air outlet
- valve seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to an engine cylinder end. A combustion chamber (1) is arranged on the engine cylinder end; an air inlet passage (5) and an air exhaust passage (6) are communicated with the combustion chamber (1); an intake valve seat ring (2) is arranged at the joint of the air inlet passage (5) and the combustion chamber (1); an exhaust valve seat ring (3) is arranged at the joint of the air exhaust passage (6) and the combustion chamber (1); and the projections of the intake valve seat ring (2) and the exhaust valve seat ring (3) on the pasting surface (7) of the cylinder end and a cylinder body have an imaginary center connecting line (9). The utility model is characterized in that the contour line (8) of the pasting surface (7) corresponding to the combustion chamber (1) is in the shape of a gourd on the whole; and the contour line (8a) of the contour line (8) corresponding to the air inlet passage (5) is longer than the contour line (8b) corresponding to air exhaust passage (6). An engine adopting the cylinder end has the advantages of high compression ratio, good dynamic properties, good economical efficiency and low exhaust.
Description
Technical field
The utility model relates to a kind of cylinder-head cover of motor, particularly relates to a kind of cylinder-head cover of motorcycle.
Background technique
Engine cylinder comprises cylinder head and cylinder body, and cylinder head and cylinder body are fitted mutually and formed the firing chamber of motor, and the performance of the shape of firing chamber and motor has confidential relation.The shape of firing chamber is mainly determined by the shape of cylinder head firing chamber.General cylinder head combustion-chamber shape is generally hemisphere now, and air can not form stronger turbulent flow after entering this firing chamber, thereby therefore influence has reduced engine power performance and economic performance with mixing of fuel oil, makes that the complete machine thermal efficiency of motor is low.In addition, abundant cooling and the reduction fuel consume to engine cylinder head also is insoluble problem in the prior art.
The model utility content
The purpose of this utility model is to provide a kind of high cylinder-head cover of compression ratio that can make motor, thereby improves the thermal efficiency of motor.
The purpose of this utility model is achieved through the following technical solutions: a kind of engine cylinder head, it is provided with the chain chamber, the firing chamber, the intake duct and the air outlet flue that communicate with described firing chamber, the jointing place of described intake duct and described firing chamber is provided with inlet valve seat ring, the jointing place of described air outlet flue and described firing chamber is provided with exhaust valve seat insert, described inlet valve seat ring and the projection of described exhaust valve seat insert on the faying surface of cylinder head and cylinder body have an imaginary line of centres, it is characterized in that: the profile line at place, the corresponding described firing chamber of described faying surface be the cucurbit shape basically; Described profile line corresponding to the length of the profile line at described intake duct place greater than profile line corresponding to described air outlet flue place.
For further improving the compression ratio of motor, described profile line is connected corresponding to the profile line at described intake duct place profile line rounding off best and corresponding to described air outlet flue place.
For further improving the compression ratio of motor, described profile line has the line segment vertical with the described line of centres corresponding to the profile line at described intake duct place, and the profile line rounding off that this line segment is adjacent connects.
For further improving the compression ratio of motor, the line segment vertical with the described line of centres is essentially straightway.
For further improving the compression ratio of motor, described profile line forms extended surface to the direction vertical extent that deviates from described faying surface, therefore this extended surface and described inlet valve seat ring and described exhaust valve seat insert arc transition form described firing chamber, form the squish face corresponding to the profile line at described intake duct place and profile line transition joint corresponding to described air outlet flue place.
For improving the intake and exhaust amount of firing chamber, the center line of described intake duct and the center line of described air outlet flue remove the part with the handing-over of described firing chamber, and the angle of two center lines is essentially 0 °.
For reducing the discharging of motor, also be provided with the secondary air inlet mouth that is communicated with described air outlet flue on this cylinder head.
Described secondary air inlet mouth comprises a jiao of being arranged on cylinder head and with the vertical hole A of described faying surface with perpendicular to described hole A and the hole B that is communicated with it; Described hole B one end is communicated with described air outlet flue, and the other end is provided with plug.
For making gasoline combustion more abundant, this cylinder head is provided with two spark-plug holes, and described two spark-plug holes are positioned at the both sides of the described line of centres.
The beneficial effects of the utility model are:
(1) owing to adopt the compression ratio height of the motor of the cylinder head that the utility model relates to, therefore makes mixture combustion faster more abundant, thereby improved the Economy and the power character of motor greatly;
(2) to the center indent, compare with the hemispherical combustion chamber because the firing chamber is above-mentioned polymorphic structure, so in two spark plug directions, cross-section area is littler, mixture turbulence intensity height in the firing chamber when Piston Compression, thus make mixed gas form good mixing, accelerated flame propagation;
(3) because the firing chamber has distinctive squish face, therefore can more effective raising firing chamber in strength of vortex and velocity of combustion, thereby motor complete machine performance is improved, the fuel consumption rate reduction, it is more abundant to burn;
(4), thereby engine power performance is further enhanced because intake duct and air outlet flue almost are in a straight line, so the speed of air inlet and exhaust improves greatly;
(5) owing to be provided with the dual ignition plug hole, the user has bigger leeway, space when choosing the motor pattern; The dual ignition plug layout cooperates the control circuit of igniting system, two spark plug simultaneous ignitions in can realizing, during low speed, the asynchronous igniting of two spark plugs during high speed; Two flame kernels are propagated to the center during simultaneous ignition, the propagation length of ignition flame is reduced, shortened firing time, and can suitably postpone firing time, the fire behaviour of mixed gas is improved, firing duration shortens, and it is more abundant to burn, and effectively reduces fuel consumption, reduced the loss of intake and exhaust, improved the thermal efficiency of complete machine, reduced discharging, the performance when having improved low speed in the motor greatly;
(6) owing to the setting of secondary air inlet mouth, therefore the gas in air outlet flue will produce secondary combustion with the air mixing that enters from the secondary air inlet mouth, thereby make the discharging of motor further reduce.
Description of drawings
Fig. 1 is the utility model embodiment 1 a structural representation;
Fig. 2 is the rear view of Fig. 1;
Fig. 3 is the A-A sectional view of Fig. 1;
Fig. 4 is the B-B sectional view of Fig. 1;
Fig. 5 is the C-C sectional view of Fig. 1;
Fig. 6 is the D-D sectional view of Fig. 2;
Fig. 7 is the E-E sectional view of Fig. 2;
Embodiment
Embodiment 1: extremely shown in Figure 9 as Fig. 1, a kind of engine cylinder head, its upper combustion chamber 1, the intake duct 5 and the air outlet flue 6 that communicate with described firing chamber 1, described intake duct 5 is provided with inlet valve seat ring 2 with the jointing place of described firing chamber 1, described air outlet flue 6 is provided with exhaust valve seat insert 3 with the jointing place of described firing chamber 1, the projection on the faying surface 7 of cylinder head and cylinder body of described inlet valve seat ring 2 and described exhaust valve seat insert 3 has an imaginary line of centres 9, it is characterized in that: the profile line 8 at 1 place, described faying surface 7 corresponding described firing chambers be the cucurbit shape basically; Described profile line 8 corresponding to the length of the profile line 8a at described intake duct 5 places greater than profile line 8b corresponding to described air outlet flue 6 places; Described profile line 8 is connected with profile line 8b rounding off corresponding to described air outlet flue 6 places corresponding to the profile line 8a at described intake duct 5 places; Described profile line 8 has the line segment 8a-1 vertical with the described line of centres 9 corresponding to the profile line 8a at described intake duct 5 places, and the profile line 8a-2 that this line segment is adjacent is connected with the 8a-3 rounding off; The line segment 8a-1 vertical with the described line of centres is essentially straightway; Described profile line 8 forms extended surface 13 to the direction vertical extent that deviates from described faying surface 7, this extended surface 13 forms described firing chamber 1 with described inlet valve seat ring 2 and described exhaust valve seat insert 3 arc transition, therefore forms squish face 12 corresponding to the profile line 8a at described intake duct 5 places with profile line 8b transition joint corresponding to described air outlet flue 6 places; The center line of the center line of described intake duct 5 and described air outlet flue 6 removes the part with 1 handing-over of described firing chamber, and the angle of two center lines is essentially 0 °; Also be provided with the secondary air inlet mouth 10 that is communicated with described air outlet flue 6 on this cylinder head; Described secondary air inlet mouth 10 comprises a jiao of being arranged on cylinder head and with the vertical hole A10-1 of described faying surface 7 with perpendicular to described hole A10-1 and the hole B10-2 that is communicated with it; Described hole B10-2 one end is communicated with described air outlet flue 6, and the other end is provided with plug 11; This cylinder head is provided with two spark-plug hole 4a, 4b, and described two spark-plug hole 4a, 4b is positioned at the both sides of the described line of centres 9.
The utility model includes but not limited to above embodiment; as long as the profile line at place, the corresponding described firing chamber of described faying surface be the cucurbit shape basically; described profile line, all drops in the protection domain of the present utility model greater than the profile line corresponding to described air outlet flue place corresponding to the length of the profile line at described intake duct place.
Claims (9)
1, a kind of engine cylinder head, its upper combustion chamber (1), intake duct (5) that communicates with described firing chamber (1) and air outlet flue (6), described intake duct (5) is provided with inlet valve seat ring (2) with the jointing place of described firing chamber (1), described air outlet flue (6) is provided with exhaust valve seat insert (3) with the jointing place of described firing chamber (1), the projection on the faying surface (7) of cylinder head and cylinder body of described inlet valve seat ring (2) and described exhaust valve seat insert (3) has an imaginary line of centres (9), it is characterized in that: the profile line (8) that the corresponding described firing chamber of described faying surface (7) (1) is located be the cucurbit shape basically; The length of the profile line (8a) that described profile line (8) is located corresponding to described intake duct (5) is greater than the profile line of locating corresponding to described air outlet flue (6) (8b).
2, engine cylinder head as claimed in claim 1 is characterized in that: the profile line (8a) that described profile line (8) is located corresponding to described intake duct (5) is connected with profile line (8b) rounding off of locating corresponding to described air outlet flue (6).
3, engine cylinder head as claimed in claim 2, it is characterized in that: the profile line (8a) that described profile line (8) is located corresponding to described intake duct (5) has the line segment (8a-1) vertical with the described line of centres (9), (8a-2,8a-3) rounding off connects the profile line that this line segment is adjacent.
4, engine cylinder head as claimed in claim 3 is characterized in that: the line segment vertical with the described line of centres (8a-1) is essentially straightway.
5, as the described engine cylinder head of any one claim of claim 1 to 4, it is characterized in that: described profile line (8) forms extended surface (13) to the direction vertical extent that deviates from described faying surface (7), this extended surface (13) forms described firing chamber (1) with described inlet valve seat ring (2) and described exhaust valve seat insert (3) arc transition, therefore forms squish face (12) corresponding to described intake duct (5) profile line of locating (8a) and profile line (8b) the transition joint of locating corresponding to described air outlet flue (6).
6, as the described engine cylinder head of any one claim of claim 1 to 4, it is characterized in that: the center line of the center line of described intake duct (5) and described air outlet flue (6) removes the part with described firing chamber (1) handing-over, and the angle of two center lines is essentially 0 °.
7, as the described engine cylinder head of any one claim of claim 1 to 4, it is characterized in that: also be provided with the secondary air inlet mouth (10) that is communicated with described air outlet flue (6) on this cylinder head.
8, motor as claimed in claim 7 is characterized in that: described secondary air inlet mouth (10) comprises a jiao of being arranged on cylinder head and with the vertical hole A (10-1) of described faying surface (7) with perpendicular to described hole A (10-1) and the hole B (10-2) that is communicated with it; Described hole B (10-2) end is communicated with described air outlet flue (6), and the other end is provided with plug (11).
9, as the described engine cylinder head of any one claim of claim 1 to 4, it is characterized in that: this cylinder head is provided with two spark-plug holes, and (4a, 4b), (4a 4b) is positioned at the both sides of the described line of centres (9) in described two spark-plug holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201260725U CN201347809Y (en) | 2009-01-09 | 2009-01-09 | Engine cylinder end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201260725U CN201347809Y (en) | 2009-01-09 | 2009-01-09 | Engine cylinder end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201347809Y true CN201347809Y (en) | 2009-11-18 |
Family
ID=41367279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201260725U Expired - Fee Related CN201347809Y (en) | 2009-01-09 | 2009-01-09 | Engine cylinder end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201347809Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185534A (en) * | 2019-05-16 | 2019-08-30 | 天津大学 | A kind of spark assisted jet igniter motor |
| CN110219747A (en) * | 2019-07-18 | 2019-09-10 | 四川轻化工大学 | A kind of cylinder cover with double sparking plugs |
| CN110296019A (en) * | 2019-07-12 | 2019-10-01 | 江门市大长江集团有限公司 | A kind of internal combustion engine with novel air inlet path |
-
2009
- 2009-01-09 CN CNU2009201260725U patent/CN201347809Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185534A (en) * | 2019-05-16 | 2019-08-30 | 天津大学 | A kind of spark assisted jet igniter motor |
| CN110296019A (en) * | 2019-07-12 | 2019-10-01 | 江门市大长江集团有限公司 | A kind of internal combustion engine with novel air inlet path |
| CN110296019B (en) * | 2019-07-12 | 2024-05-31 | 江门市大长江集团有限公司 | Internal combustion engine with novel air inlet channel |
| CN110219747A (en) * | 2019-07-18 | 2019-09-10 | 四川轻化工大学 | A kind of cylinder cover with double sparking plugs |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091118 Termination date: 20180109 |